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arXiv · 2405.08500

Dispersive approaches for the HVP and HLbL contributions to $(g-2)_\mu$

Martin Hoferichter
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Abstract

Calculations based on the analytic properties of the required matrix elements allow for a wide range of applications constraining the hadronic contributions to the anomalous magnetic moment of the muon $a_\mu=(g-2)_\mu/2$, both hadronic vacuum polarization (HVP) and hadronic light-by-light (HLbL) scattering. Here, we discuss such recent applications, including analyticity constraints on hadronic cross sections, radiative corrections, and isospin-breaking effects.

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Martin Hoferichter. 2024-05-14. Dispersive approaches for the HVP and HLbL contributions to $(g-2)_\mu$. https://arxiv.org/abs/2405.08500

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